Perhaps you should try some spelling variations:
chien tranh » hien trang
quang tran » quang tuan, quang trung, quang thanh
dung luat » dung luan, dung quat, dung cua
hieu soat » hieu suat, hieu hoat, hieu luat
luat dao » luat dat, luat bao, luat dan
dao hieu » cao hieu, van hieu, bao hiem
tran van » luan van
hanh » thanh, anh, hinh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( tin dung luat dao hieu soat ) or ( tinh quang tran van ((chien tranh) or (dieu hanh)) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung luat dao hieu soat ) OR ( tinh quang tran van ((chien tranh) OR (dieu hanh)) )).
• Adding a wildcard symbol may retrieve word variants: (( tin dung luat dao hieu soat ) or ( tinh quang tran van ((chien tranh) or (dieu hanh)) ))*.